Iranian Journal of Fisheries Sciences 19(5) 2340-2353 2020 DOI: 10.22092/ijfs.2019.118929 Age and growth of iridescent toothcarp Aphanius mento (Heckel, 1843) (Cyprinodontidae) in Seyhan Reservoir (Southeastern Mediterranean, Turkey)
Erguden S.A.1*
Received: April 2018 Accepted: September 2018
Abstract The population structure of Aphanius mento in the Seyhan Reservoir was studied on the basis of 834 fish specimens (516 males and 318 females) caught on a monthly basisbetween September 2013 and August 2014. Fish were collected using dip nets of tulle with a 1mm mesh size. The maximum age of fish was found to be 4 years for both sexes combined, the 1 year old age group comprised 62.20% of male samples. The overall sex ratio of females to males was 1:1.62. Von Bertalanffy growth parameters -1 were L∞=54.33 mm, K=0.399 year , t0 =-1.168 years for females, L∞ =52.72 mm, -1 -1 K=0.397 year , t0=-1.137 years for males, and L∞=56.50 mm, K=0.386 year , t0=-1.257 years for both sexes. The length (TL) - weight (W) relationship was W= 0.00051xTL2.635, (r= 0.965) for males, W=0.00088xTL2.464, (r= 0.987) for females and W=0.00066xTL2.554, (r = 0.974) for both sexes. Condition factor ranged from 1.696 for males and 1.613 for females to 1.664 for both sexes. The mean condition factor (CF) was not significantly different between the sexes among all fish during different months (p>0.05). The present study represents the first comprehensive information on the population structure of A. mento in the Seyhan Reservoir. The results of this study will contribute to the population management and conservation of this species and be useful in increasing knowledge on its ecology and biology.
Keywords: Aphanius mento, Growth parameters, Condition, Southeastern Mediterranean
1-Department of Fisheries Vocational School of Imamoglu, Çukurova University, 01700 Adana, Hatay, Turkey *Corresponding author's Email: [email protected] 2341 Erguden, Age and growth of iridescent toothcarp Aphanius mento (Cyprinodontidae) in...
Introduction Ceyhan River drainages (Hrbek and The genus Aphanius belonging to the Meyer, 2003; Fricke et al., 2007; Güçlü Cyprinidontidae family currently and Küçük, 2008). includes about 20 species distributed A few studies were carried out on A. along the ancient coast of the Tethys mento focusing on its sytematic and Sea (Kosswig, 1955; Villwock and growth features, nutrition, reproduction Franz, 1972; Wildekamp et al., 1999) and determination of embryological and and many species that are local larval development stages and endemisms (Wildekamp et al., 1999; morphologic characters (Wildekamp et Yogurtcuoğlu and Ekmekçi, 2013). al., 1999; Güçlü and Küçük 2008; In Anatolia, the genus Aphanius is Sezen, 2011; Güçlü and Küçük, 2011; represented by 15 species: Aphanius Erguden, 2015). anatoliae, A. asquamatus, A. danfordii, A. mento is found in shallow waters A. fasciatus, A. fontinalis, A. icoii, A. among vegetation and it feeds on insect irregularis, A. maeandricus, A. larvae, crustaceans, and algae (Krupp marassantensis, A. meridionalis A. and Schneider, 1989). It tolerates a mento, A. saldae, A. splendens, A. wide range of physico-chemical sureyanus, A. transgradiens and A. parameters, such as temperature (2- villwocki (Kuru, 2004; Fricke et al., 28.5°C), pH (7.5-8.5), salinity (1-3 g L- 2007; Parenti, 2002; Pfleiderer et al., 1) and dissolved oxygen (5-8.4 mg L-1) 2014, Çiçek et al., 2015; Yogurtcuoğlu (Güçlü and Küçük, 2008; Sezen and and Freyhof, 2018). Olmez, 2012). The genus Aphanius has no The presence of this species was economic importance for human reported for the first time in the Seyhan consumption. However, some species Reservoir by Alagöz (2005) and of this genus are aquacultured as Erguden and Göksu (2012) and the ornamental fishes and scientifically present study provides the first used as material for some genetic comprehensive information on the studies (Güçlü, 2003; Sezen, 2011; population structure of A. mento in the Sezen and Olmez, 2012). Some species Seyhan Reservoir. The results of this of the taxon are important because of study will contribute to the population their endemic character (Ergüden, management and conservation of this 2015). species and be useful in increasing The iridescent toothcarp, A. mento knowledge on its ecology and biology. (Heckel, 1843) is found in the Arabian Peninsula and is distributed throughout Materials and methods Iran, Iraq, Syria, Jordan, Israel, Samplimg Lebanon and Turkey (Froese and Pauly, The study was carried out in the Seyhan 2018). In Turkey, this species is found Reservoir (37o03′38″ N; 35o19′32″ E), on the Tigris and Euphrates River that covers a total surface area of 67.82 drainages, Aksu River, Kırkgöz Stream, km2. The average height from the sea is Orontes River and in the Seyhan and 67 m (Fig. 1). The Seyhan Reservoir is Iranian Journal of Fisheries Sciences 19(5) 2020 2342 classified as a mesotropic lake with a Luciobarbus pectoralis (Heckel, 1843), mean annual water temperature of 26.5 Capoeta angorae (Hanko, 1925), ºC and pH of 7.41. In addition to A. Capoeta erhani (Turan, Kottelat and mento, thirteen other fish species occurr Ekmekçi, 2008), Cobitis evreni in the Seyhan Reservoir namely: Erk'akan, (Özeren and Nalbant, 2008), Oncorhynchus mykiss (Walbaum, Aphanius fasciatus (Valenciennes, 1792), Carassius carassius (Linnaeus, 1821) Garra rufa (Heckel, 1843), and 1758)Carassius gibelio (Bloch, 1783), Salaria fluviatilis (Asso, 1801) Acanthobrama sp., Alburnus orontis (Erguden and Goksu 2009; Erguden, (Sauvage, 1882), Squalius kottelati 2016). Turan, (Yilmaz and Kaya, 2009),
Figure 1: Map of the study area (Seyhan Reservoir).
Measurements and age determination by independent readers without prior Fish were collected from September knowledge about sex, length, or capture 2013 to August 2014 using dip nets of time. The total length (TL) of all tulle with a 1mm mesh size. Samples preserved fish was measured to the were then preserved in 4% formalin. nearest 0.01 mm. The total body weight The age of the fish was determined (W) was recorded using an electronic from the scales taken from the left side balance to the nearest 0.001g. of the body, between the end of the thoracic fin and the beginning of the Growth parameters and Condition dorsal fin. According to Lagler (1966) factor age was deternined by taking 8-10 W = a x TLb, scales from each fish. Observations where W is the weight in g, TL the total were made using a stereoscope with length in cm, a and b the parameters to transmitted light. All readings for each be established (Ricker, 1975). The scale preparation were undertaken twice relationship between total length and 2343 Erguden, Age and growth of iridescent toothcarp Aphanius mento (Cyprinodontidae) in... weight was calculated separately for Prior to the analyses, ln-ln plots of each gender. length and weight values were The growth of the A. mento was performed for visual inspection of calculated with the following Von outliers in accordance with Froese Bertalanffy growth equations: (2006). Growth was considered -K ( t – t ) Lt = L∞ (1 – e 0 ), positively allometric if the estimate of b where Lt is the total length at age “t”, was approximately equal to or greater
L∞ the average asymptotic length (mm). than 3 and negative if it was less than 3.
K is the body growth parameter, “t0” All the statistical analyses were the theoretical age and “a” and “b” performed at 95% confidence limits constants (von Bertalanffy, 1938). using Excel 2017 and SPSS.20 Condition factor of fish was computer software. estimated using Fulton’s condition factor formula (Sparre and Venema, Results 1992): A total of 834 fish (516 males and 318 CF= W/TL3 x 100. females) were caught and examined where W is the total weight, TL is the during the study period. Age total length, and b is the coefficient of composition ranged from 1 to 4. allometric relation. Overall, the percentages of males and females in each age class were as Statistical analyses follows: age 1, 38.50% and 18.95%; A chisquare (X2 (0.05)) test was used to age 2, 19.30% and 15.59%; age 3, detect differences between the overall 2.99% and 2.63%; age 4, 1.08% and ratio of males to females (Düzgüneş et 0.96%. The maximum age was found to al., 1995). The relationship of weight to be 4 years for both sexes combined, the total length was established by the 1 year age group comprised 62.20% of exponential regression equation. The males samples. Besides 1 and 2 year linearized form of the power function age groups were predominantly males was used in a regression analysis to (Table 1). The sex ratio of females to estimate the length-weight relationship males was 1.00:1.62 and it was parameters. Slopes of the regression statistically significant according to X2 lines and mean length for each sex was analysis (X2=12.731, p< 0.05). compared using a t test (Zar, 1999).
Table 1: Aphanius mento Age-length structure in Seyhan Reservoir. Age Groups (in years) Length intervals (mm) 1 2 3 4 Total 13-16.9 62 62 17-20.9 199 199 20.9-24.9 216 132 348 25-28.9 91 91 29-32.9 68 25 93
Iranian Journal of Fisheries Sciences 19(5) 2020 2344
Table 1 continued: 33-36.9 18 2 20 37-40.9 5 11 16 41-44.9 5 5 Total 477 291 48 18 834 Mean TL ± SD 20.14±2.36 26.47±2.27 33.89±2.19 40.41±1.97 24.00±5.16 Mean TW ± SD 0.1486±0.040 0.2892±0.049 0.5262±0.096 0.8379±0.082 0.2329±0.140 Males (% n) 321 (38.50) 161 (19.30) 25 (2.99) 9 (1.08) 516 (61.87) Females (% n) 158 (18.95) 130 (15.59) 22 (2.63) 8 (0.96) 318 (38.13) F : M – (P) 1.00:2.03 1.00:1.24 1.00:1.14 1.00:1.13 1.00:1.62 (P < 0.05) (P >0.05) (P >0.05) (P >0.05) (P < 0.05)
The size of Aphanius mento in the relationship for the species was also population ranged from 13.6 to 44.0mm made using the results reviewed from and weight varied from 0.05 to 1.10g. previous studies (Table 3). Female specimens were longer than The following von Bertalaffy growth males. There was no significant equation was obtained for both sexes: –0.386(t+1.257) difference between sexes in overall Lt = 56.50 (1–e ) (Table 4). total length and total weight (t-test, L∞ values for males and females were p>0.05) (Table 2). The length class 52.72 and 54.33mm (Lt) respectively, interval 21-24.9 mm was the most whereas observed maximum lengths aboundant for males and females. The were 41.5mm for males and 44.0mm length frequency is presented in Fig. 2. (Lt) for females. The total lengths were The length-weight relationships statistically not significantly different in calculated for males, females and all age groups (t -test, p>0.05). combined sexes of A. mento were as Comparison of growth performance for follows: W=-3.282 + 2.635*log L the different Aphanius species is given (r2=0.965, n=516), for males, in Table 5. Examining the Fulton’s W=-3.292+2.464*log L (r2=0.987, condition factor (CF) for A. mento, n=516) for female and males had the best well-being with a W=-3.178+2.554*log L (r2= 0.973, mean condition factor of 1.696±0.47 n=834) for combined sexes and the whereas it was 1.613±0.22 for females exponent of length-weight relationship, and 1.664±0.21 for the total sample. b, showed negative allometry (Figs. 3, The mean monthly condition factor 4, 5). The slopes (b values) of the total ranged from 1.31 to 1.91 in males and length-weight regressions were from 1.40 to 1.86 in females (Fig. 6). significantly different between sexes (t The condition factor differences test, p<0.05). A geographic comparison between males and females were not concerning the length-weight significant (p>0.05).
2345 Erguden, Age and growth of iridescent toothcarp Aphanius mento (Cyprinodontidae) in...
Table 2: Descriptive statistics and length–weight relationships for Aphanius mento, Seyhan Reservoir.
W=aLb Growth Sex n Lmin-max Wmin-max A b 95%CIof b r2 Type Male 516 13.6-41.5 0.05-1.00 0.000522 2.635 2.59-2.67 0.965 A (-) Female 318 14.0-44.0 0.06-1.10 0.000881 2.464 2.43-2.49 0.987 A (-) Combined 834 13.6-44.0 0.05-1.10 0.000663 2.554 2.52-2.58 0.974 A (-) *n, sample size; L, length (mm); W, weight (g); SE, standard error; CI, confidence interval; a, intercept of the relationship; b, slope of the relationship; r2, coefficient of determination.
Table 3: Comparison of growth parameters for Aphanius species in the different areas.
Reference Species Locality/ Sex n Lmin-Lmax a b r Country (TL, mm) Güçlü (2012) A.anatoliae Lake Eğirdir, M+F 522 16.7-50.2 0.0232 2.322 0.826 Isparta Turkey Güçlü and KüçükA. A. mento Kırkgöz Spring, M 312 4.0-87.0 0.0568 2.403 0.878 (2008) Antalya, Turkey F 342 6.0-75.0 0.0702 2.225 0.846 M+F 654 4.0-87.0 0.0626 2.334 0.865 Karslı and Aral A. danfordii Sırakaraağaçlar M 219 18.0-48.0 0.0144 3.149 0.983 (2010) Stream, Sinop, Turkey F 233 19.0-50.0 0.0135 3.179 0.989 M+F 452 18.0-50.0 0.0139 3.164 0.987 Yogurtcuoglu and A. danfordii Hirfanli Reservoir, M 1010 - 0.00004 3.450 0.964 Ekmekci (2013) Turkey F 1224 - 0.00003 3.460 0.978 M+F 2252 12.9-68.6 - - 0.977 Leonardos and A. fasciatus Mesolonghi M 185 - 0.00648 3.400 0.990 Sinis (1999) Lagoon, Greece F 276 - 0.00595 3.440 0.990 M+F 461 31.2-64.6 0.00612 3.420 0.990 Leonardos and A. fasciatus Etolikon Lagoon, M 137 - 0.00758 3.260 0.980 Sinis (1999) Greece F 160 - 0.00826 3.220 0.970
M+F 296 29.2-68.5 0.00753 3.270 0.990
Guezi et al. A. fasciatus Ayata Lake, M - 22.5-57.6 0.013 2.809 0.863 (2017) Algeria F - 16.7-60.2 0.013 2.848 0.861
M+F 1868 16.7-60.2 0.013 2.866 0.869
Koutrakis and A. fasciatus Porto-Lagos, NE - 16 29.0-52.0 0.00980 3.312 0.953 Tsikliras (2003) Aegean, Greece Tarkan et al. A. fasciatus Küçükçekmece - 11 38.0-53.0 0.01820 2.940 0.909 (2006) Lagoon, Turkey Dulcic and A. fasciatus River Neretva - 10 28.0-53.0 0.00990 3.312 0.944 Glamuzina (2006) estuary, Croatia
Andreu-Soler et A. iberus* Segura River basin, M+F 753 13.0-42.0 0.01610 3.020 0.987 al. (2006) Spain Verdiell-Cubedo A. iberus Mar Menor Lagoon - 337 8.0-40.0 0.01670 2.981 0.984 et al. (2006) Esmaeili and A. vladykovi Modar Dokhtar M+F 319 18.0-56.0 0.01540 3.148 0.990 Ebrahimi (2006) Spring, Iran Alavi-Yeganeh et A. vladykovi Shalamzar Spring, M 41 25.0-38.0 0.01070 3.276 0.962 al. (2011) Iran F 78 15.0-46.0 0.00830 3.482 0.989 M+F 148 15.0-61.0 0.00770 3.534 0.979 *Length type: FL; Fork Length N, number; M male, F, female; TL, total length; a, intercept of the relationship; b, slope of the relationship; r, correlation coefficient. Iranian Journal of Fisheries Sciences 19(5) 2020 2346
Table 4: Von Bertalanffy growth parameters and equation of Aphanius mento Growth parameters Growth equations -k(1-t ) Sex L∞ (mm) K t 0 Lt=L∞[1-e 0 ] Male 52.72 0.397 -1.137 Lt=52.72 [1-e-0.397(1+1.137)] Female 54.33 0.399 -1.168 Lt=54.33 [1-e-0.399(1+1.168)] Combined 56.50 0.386 - 1.257 Lt=56.50 [1-e-0.386(1+1.257)]
Table 5: Growth performance comparisons of Aphanius species from different sampling area. Study Species Sex L∞ k t0 Locality Leonardos and Sinis A. fasciatus F 78.62 0.245 -1.200 (1999) M 75.68 0.246 -1.190 Mesolonghi Lagoon A 77.58 0.257 -1.020 Leonardos and Sinis A. fasciatus F 108.16 0,115 -2.090 (1999) M 80.72 0,178 -1.550 Etolikon Lagoon A 97.78 0.145 -1.580 Guezi et al. (2017) A. fasciatus F 80.00 0.172 -1.377 M 77.58 0.138 -2.236 Ayata Lake A 83.60 0.148 -1.620 Güçlü (2012) A. anatoliae A 54.51 0.279 -1.345 Lake Eğirdir
Güçlü et al. (2007) A. anatoliae F 94.44 0.160 1.580 Burdur Lake sureyanus M 79.22 0.220 1.140 Güçlü and Küçük A. mento A 23.51 0.041 -2.904 Kırkgöz Spring (2008) Karslı and Aral (2010) A. danfordii Sirakarağaçlar A 51.49 5.945 -0.502 Stream Yogurtcuoglu and A. danfordii F 126.63 0.090 -2.350 Kızılırmak Basin Ekmekci (2013) M 61.20 0.190 -2.760
Figure 2: Length frequencies of Aphanius mento in the Seyhan Reservoir.
2347 Erguden, Age and growth of iridescent toothcarp Aphanius mento (Cyprinodontidae) in...
Figure 3: The length-weight relationships of Aphanius mento from the Seyhan Reservoir for males.
Figure 4: The length-weight relationships of Aphanius mento from the Seyhan Reservoir for females.
Figure 5: The total length-weight relationships of Aphanius mento from the Seyhan Reservoir for combined sexes.
Iranian Journal of Fisheries Sciences 19(5) 2020 2348
Figure 6: Mean condition factor for males and females of Aphanius mento during September 2013 to August 2014.
Discussion was different in the results reported by In this study, the males to female sex Güçlü and Küçük (2008) for A. mento ratio for A. mento from the Seyhan in Kırkgöz Spring (24.6-87.8mm). This Reservoir was found to be 1.62:1.00. difference may be caused by This ratio was similar to those reported differences in the habitats and sampling for A. mento (1.10:1.00) in Kırkgöz methods. Total length and body weight Spring (Güçlü and Küçük, 2008), A. of A. mento indicated that the females anatoliae (1.07:1.00) in Eğirdir Lake of each age class and each season were (Güçlü, 2012), (2.10:1.00) and A. longer (Table 2) and heavier than the fasciatus in Mariut Lake (Penaz and males. Leonardas and Sinis (1999) Zaki, 1985), but differs from A. reported similar results for A. fasciatus fasciatus (1:2.44) in Mesolongi and in the Mesolongi and Etolikon lagoons. Etolikon Lagoons (Leonardos and The age of A. mento from the Seyhan Sinis, 1999), A. sureyanus (0.64:1.00) Reservoir ranged from 1 to 4. in Burdur Lake (Güçlü et al., 2007) and According to Nikolsky (1980) a wide A. danfordii (1:1.21) in Hirfanlı. range in age distribution in a population Rezervoir. This differences may be can be an indication of enough food in due to fishing equipment, sample size the water system. The age range for and genetic structures of the examined Aphanius species was similar to that of populations. A. anatoliae from the Eğirdir Lake The analysis of size and age showed ranging from 1 to 4 (Güçlü, 2012) and that A. mento is a small-sized fish with to that of A. sureyanus from Burdur populations mainly made of young Lake ranging from 0 to 4 (Güçlü et al., individuals. Population length structure 2007). However, the age range of this of A. mento in the Seyhan Reservoir study was different from those reported ranged from 13.6-44.0 mm. However it in other studies: Aphanius mento from 2349 Erguden, Age and growth of iridescent toothcarp Aphanius mento (Cyprinodontidae) in...
Kırkgöz Spring had a wider age range these differences probably are biotic (0-7) (Güçlü and Küçük, 2008), A. and environmental factors. According fasciatus in Mesolongi and Etolikon to Bagenal and Tesch (1978), length- Lagoon (Greece) ranged from 0-6 weight relationships may be influenced (Leonardos and Sinis, 1999) and from by sex, maturity, geographical location 1-6 in Ayata Lake (Algerian), Aphanius and environmental conditions. vladykovi in Modar Dokhtar Spring The correlation coefficient (r) of the (Middle Zone of Iran) ranged from 0-2 length - weight relationship of A. mento (Keivany and Soofiani, 2004), A. was 0.974 for combined sexes. The dandfordii from Sırakaraağaçlar Stream value is similar to A. dandfordii (Turkey) ranged from 0-2 (Karslı and (Yogurtcuoglu and Ekmekci, 2013; Aral, 2010), and from 0-5 in Kızılırmak Karslı and Aral, 2010), A. iberus (Yogurtcuoglu and Ekmekci,, 2013). (Andreu-Soler et al., 2006) and A. According to Güçlü (2012) these sureyanus (Güçlü et al. 2007), but differences may be due to the genetic different from A. anatoliae (Güçlü, structure of the populations. 2012), A. mento (Güçlü and Küçük, In this study, b values within the 2008), A. fasciatus (Guezi et al., 2017) length-weight relationships of A. mento and A. vladykovi (Keivany and were determined as 2.554for combined Soofiani, 2004). These situations may sexes. The allometry coefficient of the be caused by the habitats and also by length-weight relationship indicate a morphological differences. negative allometric growth for males The average asymptotic total length
(b=2.635) and females (b=2.464) in the (L∞) values showed that females of this Seyhan Reservoir. In Kırkgöz Spring population had a higher length growth
(Turkey) Güçlü and Küçük (2008) rate than males and L∞ value was found negative allometric growth in calculated as 54.33 mm for females and males (2.403) and in females (2.256) 52.72 mm for males. Similarly, Güçlü for A. mento and similarly in Ayata (2012) determined L∞ value of 54.51 Lake, Guezi et al. (2017) calculated mm for females for A. anatoliae in negative allometric growth in males Lake Eğirdir, Isparta (Turkey). (2.809) and in females (2.848) for A. However, different values were fasciatus. Hovewer, in Mariut Lake, reported for the total sample of A.
Penaz and Zaki (1985) reported positive mento (L∞ value 23.51mm) in Kırkgoz allometric growth in females (3.619) Spring (Güçlü and Küçük, 2008) and and negative growth in males (2.740) for A. fasciatus from Mesolongi and for A. fasciatus. In addition, Leonardos Etolikon lagoons, with (L∞ values of and Sinis (1999) found positive 94.44 mm and 79.22 mm for females allometry for males and females for A. and males, respectively) (Leonardos fasciatus and A. vladykovi in Mesolongi and Sinis, 1999). Different values of L∞ and Etolikon lagoons and Alavi- can be explained by environmental Yeganeh et al. (2011) in Shalamzar conditions such as salinity and Spring (Iran) (Table 3). The origins of temperature. Iranian Journal of Fisheries Sciences 19(5) 2020 2350
Condition factor values ranged from different populations and sexes of 1.61 to 1.69 with a mean of 1.66 for the Iranian thoothcarps. Journal of total sample of A. mento. The highest Ichthyology, 27(6), 1401-1403. condition factor for males and females Andreu-Soler, A., Oliva‐Paterna, F.J. was in February. Average condition and Torralva, M., 2006. A review factor for the same species was found to of length–weight relationships of be 2.55 in Kırkgöz Spring by Güçlü and fish from the Segura River basin (SE Küçük (2008), and 1.72 in Hirfanlı Iberian Peninsula). Journal of Reservoir for A. danfordii by Kırankaya Applied Ichthyology, 22(4), 295-296. et al. (2014). Guezi et al. (2017) also Bagenal, T.B. and Tesch, F.W., 1978. reported values similar to those found Age and growth. In: Bagenal T.B., in the present study: 1.41 in females editör. Methods for assessment of and 1.20 in males for A. fasciatus in fish production in fresh waters. 3rd Ayata Lake (Algeria). The condition edn. Oxford: Blackwell Scientific factor may vary by sex, age, feeding Publications, UK. pp. 101-136. condition, season, reproduction cycle Çiçek, E., Birecikligil, S.S. and (Alavi Yeganeh et al., 2011; Kiani et Fricke, R., 2015. Freshwater fishes al., 2016). of Turkey: a revised and updated Since no information currently exists annotated checklist. Biharean on the growth parameters of A. mento in Biologist, 9(2), 141-157. the Seyhan River Basin (Adana, Dulcic, J. and Glamuzina, B., 2006. Turkey), this paper is an important Length-weight relationships for contribution to the science and fisheries selected fish species from three management applications for this eastern Adriatic estuarine systems species. (Croatia). Journal of Applied Ichthyology, 22, 254-256. Acknowledgements Düzgüneş, O., Kesici, T. and Gürbüz, I wish to thank the Research Fund of F., 1995. İstatistiki metodlar. Ankara the University of Cukurova (BAPB), Üniversitesi Ziraat Fakültesi project number: IMYO2013 BAP5 for Yayınları. No: 1291, Ankara (In their financial support Turkish). 218 P. Erguden, S.A. and Goksu, M.Z.L., References 2009. Length-weight relationships Alagöz, S., 2005. Determination of Fish for 12 fish species caught in Seyhan Fauna in Seyhan Dam Lake (Adana). Dam Lake on South Anatolia, Master Thesis, University of Adana/Turkey. Journal of Applied Çukurova Institute of Natural and Ichthyology, 25, 501-502. Applied Sciences. 82 P (In Turkish). Erguden, S.A. and Göksu, M.Z.L., Alavi Yeganeh, M.S., Seifabadi, S.J., 2012. The fish fauna of the Seyhan Keivany, Y., Kazemi, B. and Dam Lake (Adana). Journal of Wallis, G.P., 2011. Comparison of Fisherie Sciences, 6(1), 39-52. length-weight relationships in 2351 Erguden, Age and growth of iridescent toothcarp Aphanius mento (Cyprinodontidae) in...
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